byte[] Nonce = null; // 32 bytes of data if FedAuth is non-zero
public void Read(TDSReader r)
{
byte OptionToken = 0;;
int DataOffset;
int DataLength;
TDSReader offsetReader = null;
OptionToken = r.ReadByte();
while (OptionToken != (byte)TDSTokenType.DONEINPROC) // 255 or 0xFF
{
DataOffset = r.ReadBigEndianUInt16();
DataLength = r.ReadBigEndianUInt16();
offsetReader = r.OffsetReader(DataOffset);
switch (OptionToken)
{
case 0: // version
{
if (DataLength > 0)
{
Version = offsetReader.ReadUInt32();
SubBuild = offsetReader.ReadUInt16();
}
break;
}
case 1: // encryption
{
if (DataLength > 0)
{
Encryption = offsetReader.ReadByte();
}
if (Encryption > 3)
{
throw new InvalidTDSException("Invalid encryption option: " + Encryption);
}
break;
}
case 2: // instanceValidity validity
{
if (DataLength > 0)
{
InstanceValidity = offsetReader.ReadByte();
}
break;
}
case 3: // thread ID
{
if (DataLength > 0)
{
ThreadID = offsetReader.ReadUInt32();
}
break;
}
case 4: // MARS
{
if (DataLength > 0)
{
MarsData = offsetReader.ReadByte();
}
if (MarsData > 1)
{
throw new InvalidTDSException("Invalid MARS option: " + MarsData);
}
break;
}
case 5: // Trace ID
{
if (DataLength > 0)
{
TraceID = new Guid(offsetReader.ReadBytes(16));
}
break;
}
case 6: // Federated Auth Required
{
if (DataLength > 0)
{
FedAuth = offsetReader.ReadByte();
}
break;
}
case 7: // NONCE Option - 32 bytes of encrypted data
{
if (DataLength > 0)
{
Nonce = offsetReader.ReadBytes(32);
}
break;
}
}
}
r.DoneWithChildReaders(); // updates parent reader offset with child reader high offset - i.e. causes the parent to jump past the referenced data
}
